Rock anchor rod structure and construction method
A technology of rock bolts and construction methods, which is applied in the direction of foundation structure engineering, construction, and sheet pile walls, etc., can solve problems affecting the quality and safety of buildings, damage to internal structures of rock foundations, and complicated and cumbersome processes, and achieve quality improvement and Effects of safety, avoidance of destruction and damage, and simplification of the construction process
Active Publication Date: 2014-04-16
博坤建设集团有限公司
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Problems solved by technology
[0010] The structure and construction method of the rock bolt of the above prior art have the following defects: in order to ensure that the pullout force of the rock bolt reaches the design requirements, it is necessary to drill a plurality of anchor holes and clear the holes for each anchor hole. Due to the number of anchor holes Too many, like this, just need multiple times of drilling and multiple times of hole cleaning, its process is complex and cumbersome, takes a long time, and the construction intensity is high; moreover, the number of anchor holes drilled on the rock foundation is too many, which may damage the rock Cause damage and damage to the internal structure of the foundation, affecting the quality and safety of the entire building
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[0054] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the present invention is not limited to the following embodiments.
[0055] Such as figure 2 , image 3 , Figure 4 , Figure 5 As shown, the structure of the rock bolt of the present invention includes a plurality of anchor holes 4 and a plurality of anchor bodies 3 arranged in the rock foundation 2 . The anchor body 3 includes an anchor hole section 3.1 anchored in the anchor hole 4 and a floor section 3.2 anchored in the concrete floor 1 above the rock foundation 2 . A group of three anchor bodies 3 are anchored in each anchor hole 4, and the anchor hole sections 3.1 of the three anchor bodies 3 in the same group are welded to each other. The bottom plate sections 3.2 of the three anchor bodies 3 in the same group are all bent, and the angle between the bent section 3.2.1 of each anchor body 3 and the vertical direction is the same an...
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The invention discloses a rock anchor rod structure and a construction method. The rock anchor rod structure comprises anchor holes (4) in a rock foundation (2), three anchor rods (3) of one group are anchored in each anchor hole (4), anchor hole sections (3.1) of the three anchor rods (3) of the same group are welded to each other, and a special-shaped welded net (6) is fixed among bent sections (3.2.1) of the three anchor rods (3) of the same group. The construction method of the rock anchor rod structure is characterized in that the anchor hole sections (3.1) of the three anchor rods (3) are welded together to be inserted into each anchor hole (4), and the bent sections (3.2.1) of the three anchor rods (3) in the same group are connected by the special-shaped welded net (6). The number of the anchor holes (4) can be reduced and damages to the rock foundation (2) can be avoided by the aid of the rock anchor rod structure and the construction method.
Description
technical field [0001] The invention relates to the field of geotechnical engineering, in particular to a structure and construction method of a rock bolt used for rock foundations. Background technique [0002] In geotechnical engineering, when constructing buildings on rock foundations, because rock foundations are different from soft soil foundations, rock foundations can withstand relatively large building load pressures, and there are few subsidence foundations, so there is no need to set up special compression structures However, when the groundwater level rises, especially when the structure on the upper floor of the building is under construction, the load on the upper floor of the floor is small and cannot resist the buoyancy of the rising groundwater, causing the floor and the upper structure of the floor to move upwards, resulting in local damage to the building. In the construction of buildings on rock foundations, sufficient rock bolts (also known as rock uplift...
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IPC IPC(8): E02D5/76
Inventor汪东曙徐江利程林军
Owner博坤建设集团有限公司